Atomizing nozzle



June 12, 1945- w. l.. WILMES ET AL 2,378,348

ATOMIZING NOZZLE Filed Feb. 16. 1944 'acteristics of spraying.

Patented June 12, 1945 OFFICE vasias-is A'ronnzING NozzL'E Willianr L.Wilmes, John W. Baur-,and Eric Gustafsson, Chicago, Ill., asslgnors 'toBinks Manufacturing Company, Chicago,vlll.,a corporationof DelawareyApplication February 16, 1944, Serial No. 522,572 3 Claims. (Cl.299-1201)A The present invention relates to nozzles and particularly theatomizing type of nozzles.

l Among the objects of the invention is to provide a novel nozzle thatisV leak proof; one which is leak sealed to prevent the liquid reachingthe threadsvof the nozzle and nozzle cap.

Another object of the invention is to provide a novel nozzle with anovel distributing means for the liquid to the tip member, and a noveltip member, either or both of which are readily replaceable by others ofdifferent capacity char- Other objects, advantages, capabilities,features' and the like are comprehended by the invention as will laterappear and as are inherently possessed by the invention.

Referring to the drawing: Y

Figuresv l and 2 are longitudinal sectional views of nozzles constructedin accordance with the invention;

Figure 3 is an end view of the distributing mem- .ber or ring used inthe nozzle;

Figure 4 is a 'sectional view taken in a plane represented by line 4-4in Figure 3 of the drawing:

Figure 5 is an end view of a nozzle tip member;

. and

Figure 6 is a fragmentary sectional view, on an enlarged scale, of thenozzle tip member.

Referring more` in detail to the drawing the embodiments chosen toillustrate the invention are shown as comprising a body I or 2 eachhaving a forward neck portion 3 suitably threaded for the reception of anozzle cap 4, as shown. The body I has a rear externally threaded shankportion 5 provided with a passage 6 leading to a chamfber 1, and thebbds1 2. has a rear internally threaded shank portion 8 leading to achamber 9. Forwardly of the chamber 1 or 9 is provided a shoulder IIIfor the seating in sealing contact of a distributing member or ring II.

'I'hisdistributing ring I I, shown more particularly in Figures 2 and 3,is provided in its forward face with an annular channel I2, and in itsrear portion with a plurality of ports I3 which are in communicationwith the channel I2 and the chamber 1 or 9. The forward face of the ringII is well within the neck 3 and rearwardly of the forward end of theneck 3.

Forwardly of the distributing ring I I is a nozzle tip member I4 whichis circular and has a rear face abutting with a sealing contact with theforward face of the ring I I and with its rear portion fitting closelywithin the forward portion ofthe neck 3.as shown in Figures l and 2. Theforwardy end of ythe tip member I4 has a reduced diameter portion I5providing a shoulder I6 for abutment of an internal flange I1 of the cap4. The portion I5 has an orice I8 communicating by way of a taperedpassage po-rtion I9 with a chamber 20 in the rear part of the member I4.

In the rear face of the member I4 is provided one or more channels orslots 2| arranged secantly or tangentially to the chamber 20. 'I'heinnerv ends of the channels 2i are open to the chamber 20 but theirouter ends have curved portions 22' which end in the rear face of themember I4 and well within the outer periphery of the member I4. Thesechannels 2i may be cut by a rotary cutter or the like 23'as shown inFigure 6. I

By having the outer ends of the channels 2i end radially within theperiphery of the member I4 the rear face of the member I4 has a sealingcontact with the forward face of the ring II radially beyond theradially outer ends of the slots or channels 2| Q thus preventingpassage of liquid from the interior of the nozzle parts to the neck 3and hence to the threads of the neck 3 and cap 4. In addition, the outerperipheries of the member I4 and the ring II fit. with a seal- -ing`contact within the neck 3 further insuring prevention of passage ofliquid to the threads of the neck 9 and cap 4. Also, by reason of theringII having a sealing contact with the shoulder I0, there is avfurther prevention of passage ofnliquid to the neck 3 and hence to the`threads of neck 3 and cap 4.

In operation,.the liquid passes through the chambers 6 and 1 (Figure l)or chamber 9 (Figure 2) to and through the ports I3 to the channel I2 tobe distributed to the channels 2| whence the liquid is projected toproduce a whirl in the chamber 2li and to pass with a whirling action toand through the orifice I8.

When spraying different liquids or at different pressures, wherebydifferent sizes of oriices and diierent sizes of channels 2l would beused, the tip member I4 may be readily replacd by another having e.different size orifice and a different size channel to meet thedifferent conditions of spraying. Likewise the rings II may be asreadily interchangeably used with different sizes of ports I9 andchannels I2.

While we have herein described and upon the drawing shown illustrativeembodiments of the inventiomit is to be understood that the invention isnot limited thereto but comprehends other constructions. details,arrangements of parts, features. and the like without departing from thespirit of the invention.

Having thus disclosed the invention, we claim:

1. In an atomizing nozzle structure of the character disclosedcomprising a tubular body having an open forward end portion and anozzle cap detachably connected to` said forward end portion and havinga forward internal flange; in combination therewith of a nozzle tipmember having a forward portion engaging said flange and provided withan orifice and a rear portion engaging said forward end portion of thebody and provided with a chamber communicating with said orifice, and aseparable and replaceable distributing member engaging said rear portionof said nozzle tip member, said forward end portion ofthe body having acylindrical chamber, and said distributing member and said nozzle tipmember having peripheries which are in sealing contact with the wall ofsaid cylindrical chamber, the wall of said cylindrical chamber extendingaxially; along 'a portion of said periphery of said nozzle tip memberfor providing a clearance between said internal flange of said nozzlecap and the forward' end of said cylindrical chamber portion of saidbody, said nozzle tip member having an annular Y rear face, and saiddistributing member having an annular forward face in sealing contactwith said annular rear face of said nozzle tip member, the rear end ofsaid nozzle tip member being provided with a secantly disposed slotextending in said annular rear face from a point radolly within saidperiphery of said nozzle tip member and in communication with saidchamber, the forward end of said distributing member being provided withan annular channel radially within said periphery of said distributingmember and said annular forward face and being disposed to communicatewith said slot, and said distributing member having an axial andconcentric passage extending from said channel to the rear side of saiddistributing member.

2. In an atomizing nozzle structure of the character disclosedcomprising a tubular body having an open forward end portion and anozzle cap detachably connected to said forward end portion and having aforward internal flange; in combination therewith of a nozzle tip memberhaving a forward portion engaging said flange and provided with anorifice and a rear portion engaging said forward end portion of the bodyand provided with a chamber communicating with said orifice, and aseparable and replaceable distributing member engaging said rear portionof said nozzle tip member, said forward end portion of the body having acylindrical chamber provided with an annular shoulder rearwardly of theopening of said forward end portion of the body, said distributingmember and said nozzle tip member having peripheries which are insealing contact with the wall of said cylindrical chamber, saiddistributing member having a rear face adjacent the periphery thereof insealing contact with said shoulder, said nozzle tip member having anannular rear face adjacent the periphery thereof, and said distributingmember having an annular forward face adjacent the periphery thereof insealing contact with said annular rear face of said nozzle tip member,the wall of said cylindrical chamber extending axially along a portionof said periphery of said nozzle tip-member for Aproviding a clearancebetween said internal flange of said nozzle cap and the forward end ofsaid cylindrical chamber portion of said body, the rear end of saidnozzle tip member being provided with a secantly disposed slot extendingin said annular rear face from a point radially within said periphery ofsaid nozzle tip member and in communication with said chamber, theforward end of said distributing member being provided with an annularchannel radially within said periphery of said distributing member andsaid annular forward faceand being disposed to communicate with saidslot, and said distributing member having an. axial and concentricpassage extending from said channel to the rear side of saiddistributing member.

3. In an atomizlng nozzle structure of the character disclosedcomprising a tubular body having an open forward end portion and anozzle cap detachably connected to said forward end portion and having aforward internal flange; in combination therewith of a nozzle tip memberhaving a forward portion engaging said flange and provided with anorifice and a rear portion engaging said forward end `portion of thebody and provided with a chamber communicating with said orifice, and aseparable and replaceable distributing member engaging said rear portionof said nozzle tip member, said forward end portion of the body having acylindrical chamber provided f with an annular shoulder rearwardly ofthe opening of said forward end portion of the body, said distributingmember having a rear face adjacent the periphery thereof in sealingcontact with said shoulder, said distributing member and said noz'- zletip member having peripheries which are in sealing contact with the wallof said cylindrical chamber, said nozzle tip member having an annularrear face adjacent the periphery thereof, and said distributing memberhaving an annular forward face adjacent the periphery thereof in sealingcontact with said annular rear face of said nozzle tip member, the wallof said cylindrical chamber extending axially along a portion of saidperiphery of said nozzle tip member for providing a clearance betweensaid internal flange of said nozzle cap and the forward end of saidcylindrical chamber portion of said body, the rear end of said nozzletip member being provided with a secantly disposed slot extending insaid annular rear face from a point radially within said periphery ofsaid nozzle tip member and in communication with said chamber, theforward end of said distributing member being provided with an annularchannel radially within said periphery of said distributing member andsaid annular forward face and being disposed to communicate with saidslot, and said distributing member having a passage extending from saidchannel to the rear side of said distributing member.

- WILLIAM L. WILMES.

JOHN W. BAUR. ERIC GUSTAFSSON.

